LAS VEGAS (AP) — An activist who will deliver a Democratic response in Spanish to President Donald Trump's first speech to a joint session of Congress plans to address his administration's crackdown on undocumented immigrants and the need for affordable health care. Democrats have invited immigrants and foreigners to Trump's speech in an effort to put a face on those who could be hurt by the Republican's policies. Among those who have been invited are the Iraqi-American doctor who discovered elevated levels of lead in the blood of many children living in Flint, Michigan, and a Pakistani-born doctor who delivers critical care to patients in Rhode Island.